Building Blocks: Ancient Fossils, Modern Technology
As scientists work to answer vexing questions about the origins of life, they examine the fossilized remains of the primitive life forms which at one time populated early Earth. The challenge in doing this is not only a function of the age of the fo...
Building Blocks: Origins of Life
There are many questions yet to be answered about how, why and where life on Earth began. There are those who believe that DNA protein-based life as we know it may have had its origins in the world of RNA.
Building Blocks: Role of Evolution in Early Life
The ability to adapt to changing or difficult conditions is clearly necessary if an organism is to be biologically successful.
Building Blocks: Role of the Ocean in Early Life
Many scientists believe that life on Earth began in the ocean, because continental areas on the early Earth did not offer the kind of conditions that would have been conducive to life.